contacts that most closely relate to their interests and requirements. In addition, community members can get to know other EMC providers and users via video conferencing as part of a “speed-dating” scheme to exchange ideas of interest. Each day of the event will include a


networking time between noon and 3 pm, during which questions can be asked about products or assessments can be obtained by experts on specific EMC applications.


WORKSHOP SCHEDULE A total of 35 workshop sessions have been scheduled across the five days in either English or German. The workshops will have a hands-on,


interactive nature and attendees will be invited to pose questions and discuss their application in everyday work with experts in the field. Renowned speakers from industry and science will give presentations on EMC basics, filters, certification, drives, measurement, functional safety and automotive technology. The workshop agenda includes EMC basics with a focus on electromagnetic field testing as well as sessions on specialist topics such as EMC of switched-mode power supplies or EMI problems with grounds and grounding.


Registration is free with workshops able to be added optionally for a fee. T&TH


electromagnetic fields are generated. Many EMC measures have been developed in recent years, ranging from filtering and screening to rise-time control, DC bus filtering and noise modulation. The session will cover the design of electrical drive systems from an EMC viewpoint as well as the use of filters. Problems due to design constraints will


be explained in detail. New materials, applied in a novel way, as well as measurement techniques will be described. Simulation and measurement results of actual drive systems will be used many times to explain and prove the concepts.


❱❱ Shielding in practice ❱❱ Thursday March 25; 09:00-12:00 ❱❱ Prof Dr Frank Leferink, University of Twente, The Netherlands


❱❱ This workshop will cover standard shielding theory and practical applications. The different shielding performance of conductive materials as well as mechanical and environmental aspects like corrosion will be discussed. Composite panels with metal fibres, carbon fibre, metal paint and conductive cloth will also be covered.


The effects of cable feed-throughs which


can destroy the shielding performance of a cabinet or Faraday cage, the size and number of holes, the influence of seams, number of screws or rivets and the advantages of gaskets will be shown. In addition, shielding effectiveness measurement techniques, procedures and standards will be briefly discussed, as well as measurement results obtained with various metal and composite panels, gaskets, feedthroughs and cabinets.


❱❱ Electromagnetic compatibility of switched-mode power supplies


❱❱ Thursday March 25; 14:00-17:00 ❱❱ Prof Dr Günter Keller, Technische Hochschule Deggendorf (THD), Germany


❱❱ The topic starts with a brief overview of legal regulations and standards, some emission measurements and immunity tests including background and test set-ups are presented. The four coupling mechanisms (impedance, capacitive, magnetic and radiated) are discussed, including countermeasures. Signal description (common-mode, differential-mode, Fourier


Transform) is explained in detail with a number of examples related to switched- mode power supplies. The second half of the session deals with


EMC design of switched-mode power supplies. Starting with power factor correction circuits, EMC filters are discussed in detail, followed by suitable components, like transformers and their construction, as well as shielding methods.


❱❱ Grounds in PC boards and cables ❱❱ Thursday March 25; 14:00-17:00 ❱❱ Lee Hill, Silent Solutions, USA ❱❱ This session will cover the electrical requirements and functions of ‘‘ground’’ in printed circuit board and system cable assembly design. Hardware demonstrations at low and high frequencies will illustrate concepts in an easy-to-understand manner. This workshop will provide attendees with


practical knowledge that will help them understand grounds and grounding. Practical application examples and hardware demonstrations with current and magnetic field probes will ensure that attendees learn while enjoying this fun presentation.


March 2021 /// Testing & Test Houses /// 27


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